1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1f99e4ab51b385c258bdc7cdea0d46ab17e8fabd8038fe48c6923e72031a3f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c8c8527-24e2-4602-8454-2e365fdfdd63.json and https://artists.proofprofile.net/proofs/artist/3c8c8527-24e2-4602-8454-2e365fdfdd63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dc653986d56133df879116afedaaa25bf0b69b1256884c859361283d244d1c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS320501451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73bf40c361309aceb45e1e78ac527c50bf23bd91efadf69b0591e7abcf8acef. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:03:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS320501477.
Chembakame (Original Motion Picture Soundtrack)
Mizhineer (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b975b2361acda54b09f6fd63a92eb29989d4079c58291de5166e01651c4cdd3. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS320601692.
Jubilee (Original Motion Picture Soundtrack)
Veruthe Oru Bharya (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef8a423924a811112385dd1834c0e7d43bb67b40dd1278da015f5b86a75ea7e. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS320802254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9a9a4903c84e73f2ec467e8129275a8811732aa80e18b681c4f69852e8ec42. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS320802255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a1675ec6605fe59cfbcbc622b0781f95e82b1db372a7e2c115caf4314b68d3. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS320802256.
Pramughan (Original Motion Picture Soundtrack)
Kana Kanmani (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553ff44108af4f667c53162499c60b40d5cf71ea329095c3c3b2d6b7712a6ab7. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:28:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/INS320903313.
Keralothsavam 2009 (Original Motion Picture Soundtrack)
Thaskara Lahala (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fb044656e93d6c2b52dd8f9b77ed1d6c1f386983e83898a87414c64670ac96. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292207209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20005d2f900fccaec2376765bd209defeb1d9dd80ff134199d36bec1074ca777. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292208026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d593a1f8cdc914a36c803e8dc802ef091435d2636dfe91c12572400bf567ff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292213862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65df2742e4d9467ceb1c8feec0779fc117ef4cc15d99abb50cb4046c987ca3c1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292215611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93b94c15411fd4dba1afcf9ca4d51c2293e592f51aa2d335a155ad0620f41d9. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292216117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464117312863c63d5172b967ae37801e5f992ccdd7580d542bd7a558bc89c9fa. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292216797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3615bfaf707831b0b5d3efd076be855640bcc706409f06fe1c32344827832ee. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292217023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201d12d3cb13908ac6c29e260ab6d2d12b736a580e23b92dc24b2b3ba1156060. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:30:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292218158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6408050c2aa2c83e67686809edce38138c3eae554f0971591b04494ee615be. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292218239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934f85da19b1b7a67e0010fd0f25c79e8f09d92e85a4725960468ca3768590ba. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:55:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IND292218360.